Javelin



Julie 28, 1938. H. CAMPBELL ET AL 2,122,023

JAVELIN tzi/$77.507 77g Zd CCU? Filed De@I 27, 19:57

,a A; n L man @n3 ,if mZ/f 0.,'.

Patented June 28,1938 .z 1

9 claims. (c1. 27a- 759) y ."l'he present invention'relates toimprovements in javelins. The purposel of this invention' is toA soconstructL the point of the javelin as to make the` practice of andparticipation in thesport 1 5 of javelin throwing less pants andspectators fand make itpossible to adjust'nthe weight and balance'of thejavelin. 'The invention contemplatesjthe provision of a safety point forrjavelins wherein fthe `entire `construction and mounting of the pointupon the .javelin shaft is ysuch as -to absorb the shock when thejavelin strikes an object, at the end'of the throw.

To carry out theA purposeof the invention varition andarrangement ofAthe parts. yTwo such forms of the invention are shown in thevdrawing,although it is obviousv that other forms may embody the novel featuresof the invention.

will appear more fullyy from the :following description when taken inconnection with the accompanying drawing which illustrates the twopreferred forms of the invention.

In the drawing, Fig. 1 is a plan view of the point portionof thejavelin;'p v j'Fig. 2 is an enlargement of the structure shown in Fig. l, withthe point of the javelin shown in section to illustrate the constructionthereof;

Fig. 3 is a fragmentary plan View, showing the javelin shaft and themounting means for the point, and a Fig. 4 is a sectional view similarto Fig. 2, showing a slightly modified form of the invention.

Referring now to the drawing, in Fig. 1` there is shown a portion of ajavelin including the usual wooden handle 5, a tapered steel ferrule 6,and our improved shaft point 1. -The ferrule 6 has a plunger 8 therein,which is rtapered to fit smoothly inside the ferrule and which is largeenough to prevent its passing out the small end of the ferrule. Thisplunger is not secured in the ferrule and may be forced towardthe largeend of the ferrule by pressure applied at the small end thereof.

The plunger 8 carries a screw threaded member ASI that threads into theplunger so that it can be removed. The member! also supports'a rubbertip I0 which has molded therein a metal sleeve II that is internallythreadedto receive the member 9. Interposed betweenfthe tip I0 and theplunger 8 are a plurality of resilient washers I2 which may beconstructed of any suitable material, such as rubber, and a protectivemember I3 that is hard enough to protect the resilient washers from theadjacent edge dangerous tov partici-` .'object at the end ofV its impact'of the -point Illagain'st-'the objectacts to Ious modifications may bemade infthe'cons'truc-y g 15.

The features and advantages of the invention UNITED*'srmrs of the'ferrule-B.' Thevmember I3 .is a plugor.

sleeve which allows thev bolt 9 to plunge'up or@r down'. It may beconstructedv` either ofahard fibrous material or metal. The'plug vI3'acts as a guide for the bolt 9,`keeping the units "1,112,29'

and 8 `in true alignment,andvcentere d with 'r'e."

spect to` the .ferrule `6.

In operation, when'the javelin i'sthrown'and the point I0 strikesflight,the force of the compress the point Ill andthe washers 'I2,.and`

the ground or somezother since'theplunger 8 islfree to move, itmaybe 'lbacked'up-in the fe'rrule The resultl'is 'a cushioning of the shock anda resultant reduc' tion in danger fromk injury if the. javelin shouldhappen to strike anyr person.' Also, due to the i the pointconstruction, there is little danger of the point being broken or bentso as to destroy its utility. vBetween the plug I3 and the plunger 8lthere is a space I'I of suffiresilient nature of vcient width to enablethe plunger action to take -place evenly and in perfect alignment. Byinserting weights such as lead washers or shot in the space I1, theweight and balance of the javelin may be adjusted, should necessityarise. The pointv III may be made-of any suitable material. It isnotnecessary that it bevrubber or'even. resilient to the extent that rubberis. The washersv I2 provide resiliency. The point I0 for ex ample may be`made of fiber or s'tandardfootballl cleat rubber. In the form oftheinvention shown in Fig. 4, the point of the javelin is of a morepermanent construction, in that the ferrule 6 has the plunger 8permanently fixed therein by a plurality of 1 rivets I4, and instead ofusing a series of rubberwashers around the member 9, we may use a mul.tiplicity of `fiberl washers I5. The rubber tip I0 hasthe screw threadedmetal sleeve I I, the same as in the rst form. This form of theinvention does not have the same degree of yield under shock that theplunger type has, since the pri--` mary yield in this case must comefrom the rubber tip I0. In order to take up any uneven-v ness, a brassbushing I6 may be inserted betweenv the plunger body 8 and the ferrule.

The present invention is capable of being applied directly to anexisting javelin by merely cutting olf the present dangerous sharpweighted' num alloys now on the market, in order tcavoid l concentrationof weight in the plunger itself.

Having thus described our invention, what we claim as new and desire tosecure by Letters Patent is:

1. A javelin having a hollow ferrule, a point for the javelin comprisinga resilient tip portion and a light Weight body mounted in the end ofthe ferrule and having means for fixing the tip to the ferrule.

2. A javelin having a resilient point mcveably mounted with respect'tothej'avelin shaft, said point comprising a plunger moveable in theforward end of the javelin, a threaded member pro-3 tip L8. A javelinhaving a hollow ferrule and a 3. A javelin having a resilient .pointmoveably mounted Vwith respect to the javelin shaft, said. .l pointcomprising a plunger moveable inthe for` jecting from the plunger and aresilient mounted on the free end of said member.

ward end of the javelin, a threaded member pro; jecting from the plungerand a resilient tip mounted on the free end of said member, saidresilient tipbeing separatedifrom the plunger by a plurality ofresilient washers.

4. A javelin having a shaft and a resilient point xed tothe shaft, saidpoint comprising a rubber body having a sleeve therein of metal, andsaid javelin shaft having ascrew threaded member projecting therefrom toreceive said sleeve.

5. A javelin having ashaft and a resilient point fixed to` the shaft,said point comprising a j rubber body having a sleeve therein ofmetaland said javelin` shaft having a screw threaded memberprojectingtherefrom to receive said sleeve and a plurality of ber washersinterposed between the end of the javelin shaft and the resilient tip. 1

6. A javelin having a hollow ferrule and a point comprising atipportion, spaced from the ferrule, a plunger movably mounted in theferrule and fixed to said tip portion, and resilient means interposedbetween the tip portion and the ferrule.

7. A javelin having a hollow ferrule and a point comprising a tipportion, spaced from the ferrule, a plunger movably mounted in theferrule and fixed to said tip portion, and resilient means interposedbetween the tip portion and the ferrule, said resilient means includinga rubber --washen and means protecting the washer from the adjacent edgeof the ferrule.

point Acomprising a tip portion spaced from the ferrule, ,-afplungermovably mounted in the ferrule and xedtosaid tip portion, and resilientmeansinterposedbetween the tip portion and the ferrule, said resilientmeans being separated from the ferrule by a plug at the end of theferrule and said plunger being spaced inwardly from said plug to provideachamber in which weights for balancing the javelin may be placed.

9. A javelin point comprising a tipportion, a mounting member projectingfrom said tip portion for'mounting it in spaced relation to the forwardend of `va kjavelin shaft, means movably mounting said Amember in theend of the javelin shaft, Yand resilient means around said memberbetween the tip portion and the adjacent end of the javelin shaft.

HARRYl W. CAMPBELL. TOM s. GRAHAM.

